diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/ChangeColumnTypePanel.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/ChangeColumnTypePanel.java
index 6b16073..2fcc55c 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/ChangeColumnTypePanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/ChangeColumnTypePanel.java
@@ -915,7 +915,7 @@ public class ChangeColumnTypePanel extends FramedPanel implements
 						storeComboColumnReferenceType.addAll(result);
 						storeComboColumnReferenceType.commitChanges();
 						comboColumnReferenceTypeLabel.setVisible(true);
-
+						forceLayout();
 					}
 				});